1755608

Information

• Patent Grant
• 1755608

• References
• Source

• Patent Number

  1,755,608

• Date Filed

  Not available

• Date Issued

  Tuesday, April 22, 1930
  94 years ago

• CPC

  • E02D29/12 - Manhole shafts Other inspection or access chambers Accessories therefor
  • Y10T137/7028 - Tapering or tower type
  • Y10T137/863 - Access and outlet

• US Classifications

  • 137 - Fluid handling
  • 052 - Static structures
  • 182 - Fire escape, ladder, or scaffold